[ET-VK][ez] Allow high dimensional tensors (for buffer storage)

Pull Request resolved: #13596

As title; now that we can represent the metadata of higher dimensional tensors, we can remove checks that constrain Vulkan to only work with tensors of dim <= 4.


@imported-using-ghimport

Differential Revision: [D80800083](https://our.internmc.facebook.com/intern/diff/D80800083/)
ghstack-source-id: 304953695

Author: ssjia

backends/vulkan/runtime/api/containers/Tensor.cpp

@@ -189,10 +189,14 @@ utils::uvec3 calculate_image_extents(
     const std::vector<int64_t>& padded_sizes,
     const std::vector<int64_t>& axis_map,
     const int32_t packed_dim) {
-  VK_CHECK_COND(padded_sizes.size() == 4);
-  VK_CHECK_COND(axis_map.size() == 4);
-
   utils::uvec3 extents({1, 1, 1});
+
+  // For high dimensional tensors, buffer storage must be used. No need to
+  // compute image extents in this case.
+  if (padded_sizes.size() > 4) {
+    return extents;
+  }
+
   // First three elements of axis_map indicate which (X,Y,Z) image axis the
   // width, height, and channels dim of the tensor maps to.
   for (int whcn_dim = 0; whcn_dim < 3; ++whcn_dim) {
@@ -576,12 +580,15 @@ vTensor::vTensor(
           sizes,
           dtype_,
           allocate_memory)) {
-  uniform_data_ = std::make_shared<UniformData>(UniformData{
-      numel_,
-      sizes_,
-      dim_order_,
-      strides_,
-      calculate_logical_limits(storage_->image_extents_, axis_map_)});
+  // uniform_data_ only valid for low dim tensors
+  if (sizes.size() <= 4) {
+    uniform_data_ = std::make_shared<UniformData>(UniformData{
+        numel_,
+        sizes_,
+        dim_order_,
+        strides_,
+        calculate_logical_limits(storage_->image_extents_, axis_map_)});
+  }
 
   VK_CHECK_COND(
       dim_order_is_valid(dim_order_), "computed dim order is invalid");
@@ -813,24 +820,29 @@ size_t vTensor::get_max_ubo_nbytes(const size_t nbytes_per_ubo) const {
 }
 
 const vkapi::BufferBindInfo vTensor::sizes_ubo() {
+  VK_CHECK_COND(sizes_.size() <= 4);
   return metadata_ubo_impl(&sizes_uniform_offset_, uniform_data_->sizes_v);
 }
 
 const vkapi::BufferBindInfo vTensor::dim_order_ubo() {
+  VK_CHECK_COND(sizes_.size() <= 4);
   return metadata_ubo_impl(
       &dim_order_uniform_offset_, uniform_data_->dim_order_v);
 }
 
 const vkapi::BufferBindInfo vTensor::strides_ubo() {
+  VK_CHECK_COND(sizes_.size() <= 4);
   return metadata_ubo_impl(&strides_uniform_offset, uniform_data_->strides_v);
 }
 
 const vkapi::BufferBindInfo vTensor::logical_limits_ubo() {
+  VK_CHECK_COND(sizes_.size() <= 4);
   return metadata_ubo_impl(
       &logical_limits_uniform_offset_, uniform_data_->logical_limits);
 }
 
 const vkapi::BufferBindInfo vTensor::numel_ubo() {
+  VK_CHECK_COND(sizes_.size() <= 4);
   return metadata_ubo_impl(&numel_uniform_offset_, uniform_data_->numel);
 }
 
@@ -893,31 +905,33 @@ void vTensor::update_metadata() {
   strides_ = calculate_strides(sizes_, dim_order_);
 
   // Update uniform data if it has been modified
-  uniform_data_->numel = utils::safe_downcast<int32_t>(numel_);
-  uniform_data_->sizes_v =
-      flip_and_unsqueeze_ivec4(sizes_, kTensorSizes, numel_);
-  uniform_data_->dim_order_v =
-      flip_and_unsqueeze_ivec4(dim_order_, kTensorDimOrder, numel_);
-  uniform_data_->strides_v =
-      flip_and_unsqueeze_ivec4(strides_, kTensorStrides, numel_);
-  uniform_data_->logical_limits.limits =
-      calculate_logical_limits(sizes_, axis_map_, packed_dim_);
-
-  if (sizes_uniform_offset_ != kUniformOffsetUnset) {
-    uniforms_.update(uniform_data_->sizes_v, sizes_uniform_offset_);
-  }
-  if (dim_order_uniform_offset_ != kUniformOffsetUnset) {
-    uniforms_.update(uniform_data_->dim_order_v, dim_order_uniform_offset_);
-  }
-  if (strides_uniform_offset != kUniformOffsetUnset) {
-    uniforms_.update(uniform_data_->strides_v, strides_uniform_offset);
-  }
-  if (numel_uniform_offset_ != kUniformOffsetUnset) {
-    uniforms_.update(numel_, numel_uniform_offset_);
-  }
-  if (logical_limits_uniform_offset_ != kUniformOffsetUnset) {
-    uniforms_.update(
-        uniform_data_->logical_limits.limits, logical_limits_uniform_offset_);
+  if (sizes_.size() <= 4) {
+    uniform_data_->numel = utils::safe_downcast<int32_t>(numel_);
+    uniform_data_->sizes_v =
+        flip_and_unsqueeze_ivec4(sizes_, kTensorSizes, numel_);
+    uniform_data_->dim_order_v =
+        flip_and_unsqueeze_ivec4(dim_order_, kTensorDimOrder, numel_);
+    uniform_data_->strides_v =
+        flip_and_unsqueeze_ivec4(strides_, kTensorStrides, numel_);
+    uniform_data_->logical_limits.limits =
+        calculate_logical_limits(sizes_, axis_map_, packed_dim_);
+
+    if (sizes_uniform_offset_ != kUniformOffsetUnset) {
+      uniforms_.update(uniform_data_->sizes_v, sizes_uniform_offset_);
+    }
+    if (dim_order_uniform_offset_ != kUniformOffsetUnset) {
+      uniforms_.update(uniform_data_->dim_order_v, dim_order_uniform_offset_);
+    }
+    if (strides_uniform_offset != kUniformOffsetUnset) {
+      uniforms_.update(uniform_data_->strides_v, strides_uniform_offset);
+    }
+    if (numel_uniform_offset_ != kUniformOffsetUnset) {
+      uniforms_.update(numel_, numel_uniform_offset_);
+    }
+    if (logical_limits_uniform_offset_ != kUniformOffsetUnset) {
+      uniforms_.update(
+          uniform_data_->logical_limits.limits, logical_limits_uniform_offset_);
+    }
   }
 
   if (buffer_meta_.buffer()) {

backends/vulkan/runtime/api/containers/Tensor.h

@@ -676,6 +676,7 @@ class vTensor final {
   }
 
   const std::shared_ptr<UniformData>& get_uniform_data() const {
+    VK_CHECK_COND(sizes_.size() <= 4);
     return uniform_data_;
   }
 };

backends/vulkan/test/op_tests/cases.py

@@ -55,16 +55,28 @@ def get_binary_elementwise_inputs():
             ((3, 64, 1), (1, 64, 1)),
         ]
     )
-    test_suite.layouts = [
-        "utils::kWidthPacked",
-        "utils::kChannelsPacked",
-    ]
     test_suite.storage_types = [
         "utils::kBuffer",
         "utils::kTexture3D",
     ]
 
-    return test_suite
+    highdim_test_suite = VkTestSuite(
+        [
+            ((4, 5, 8, 1, 2, 1), (4, 5, 8, 1, 1, 1)),
+        ]
+    )
+    highdim_test_suite.storage_types = [
+        "utils::kBuffer",
+    ]
+    highdim_test_suite.test_name_suffix = "highdim"
+
+    for suite in [test_suite, highdim_test_suite]:
+        suite.layouts = [
+            "utils::kWidthPacked",
+            "utils::kChannelsPacked",
+        ]
+
+    return [test_suite, highdim_test_suite]
 
 
 # Eq requires a different test generator so it was split from the other test case.

backends/vulkan/utils.py

@@ -599,9 +599,9 @@ def make_filtered_tensor_repset(
         if extents_are_valid(extents, texture_limits):
             valid_texture_layouts.add(memory_layout)
 
-    # High dimensional tensors are currently not supported
+    # High dimensional tensors require buffer storage
     if len(tensor_val.shape) > 4:
-        return NO_STORAGE
+        return TensorRepSet(tensor_repset.valid_buffer_layouts, set())
 
     # Bool tensors are currently not supported
     if tensor_val.dtype == torch.bool: